MPICommGroup Class Reference

#include <parallel_comm.h>

Collaboration diagram for MPICommGroup:

Public Member Functions
	MPICommGroup (MPI_Comm parent_comm)
	~MPICommGroup ()
void	divide_group_comm (const int &ngroup, const bool assert_even=true)

Public Attributes
bool	is_even = false
	whether the group is even
MPI_Comm	parent_comm = MPI_COMM_NULL
	parent communicator
int	gsize = 0
	size of parent communicator
int	grank = 0
	rank of parent communicator
MPI_Comm	group_comm = MPI_COMM_NULL
	group communicator
int	ngroups = 0
	number of groups
int	nprocs_in_group = 0
	number of processes in the group
int	my_group = 0
	the group index
int	rank_in_group = 0
	the rank in the group
MPI_Comm	inter_comm = MPI_COMM_NULL
	inter communicator
bool	has_inter_comm = false
	whether has inter communicator
int &	nprocs_in_inter = ngroups
	number of processes in the inter communicator
int &	my_inter = rank_in_group
	the rank in the inter communicator
int &	rank_in_inter = my_group
	the inter group index

Constructor & Destructor Documentation

MPICommGroup()

MPICommGroup::MPICommGroup

(

MPI_Comm

parent_comm

)

~MPICommGroup()

MPICommGroup::~MPICommGroup

(

)

Member Function Documentation

divide_group_comm()

void MPICommGroup::divide_group_comm	(	const int &	ngroup,
		const bool	assert_even = true
	)

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Member Data Documentation

grank

int MPICommGroup::grank = 0

rank of parent communicator

group_comm

MPI_Comm MPICommGroup::group_comm = MPI_COMM_NULL

group communicator

gsize

int MPICommGroup::gsize = 0

size of parent communicator

has_inter_comm

bool MPICommGroup::has_inter_comm = false

whether has inter communicator

inter_comm

MPI_Comm MPICommGroup::inter_comm = MPI_COMM_NULL

inter communicator

is_even

bool MPICommGroup::is_even = false

whether the group is even

my_group

int MPICommGroup::my_group = 0

the group index

my_inter

int& MPICommGroup::my_inter = rank_in_group

the rank in the inter communicator

ngroups

int MPICommGroup::ngroups = 0

number of groups

nprocs_in_group

int MPICommGroup::nprocs_in_group = 0

number of processes in the group

nprocs_in_inter

int& MPICommGroup::nprocs_in_inter = ngroups

number of processes in the inter communicator

parent_comm

MPI_Comm MPICommGroup::parent_comm = MPI_COMM_NULL

parent communicator

rank_in_group

int MPICommGroup::rank_in_group = 0

the rank in the group

rank_in_inter

int& MPICommGroup::rank_in_inter = my_group

the inter group index

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The documentation for this class was generated from the following files:

• /home/runner/work/abacus-develop/abacus-develop/source/source_base/parallel_comm.h
• /home/runner/work/abacus-develop/abacus-develop/source/source_base/parallel_comm.cpp